Hyaluronic acid has been among the star treatments in cosmetics for years. It is a compound - a polysaccharide - generated naturally by mucous cells and the skin itself. In the human organism it is found in the space between cell and cell and its function is to give firmness and support of the tissue , so in dermo-aesthetic treatments what is sought with injections of this product is that The skin regains smoothness and firmness. Precisely that is the function that some celebrities look for in this ingredient and that even the acting Government president, Pedro Sánchez, could have used.

Over the years, the skin - and also other tissues such as cartilage and tendons - is losing its ability to make hyaluronic acid in the intercellular space, which causes the appearance of wrinkles. This compound also has a huge capacity to retain water , so it also becomes a powerful moisturizing agent, a very important characteristic to keep the skin looking young and healthy.

"At the beginning, it began to be used in cosmetics in the form of implants to recover facial volumes. Subsequently, its moisturizing capacity in the dermis was demonstrated and, in addition, its stimulation on the creation of new collagen was surprised. It should be borne in mind that a molecule of hyaluronic acid is capable of attracting hundreds of water molecules, and retains them, "dermatologist Virginia Sánchez García, a member of the Spanish Academy of Dermatology and Venereology (AEDV), acknowledged to this newspaper.

In this way, aged skin is not only dehydrated skin , but also a tissue that cannot stretch and then return to its initial state without fine wrinkles.

Some brands enhance their penetration by associating the molecule with colloidal gold in what they call gold nanoparticles of hyaluronic acid

Hyaluronic acid injections have proven effective for years to combat these effects and delay the appearance of signs of aging in the skin. However, not all hyaluronic acids are the same.

The name is the same regardless of the type of polysaccharide chains - a repetition of long chains of sugars - that is injected. But depending on the number of repeated chains that the molecule has, it will have different molecular weight and therefore more or less easily to penetrate the tissue.

In any case, it is a large molecule that penetrates with difficulty and therefore acts primarily on the most superficial layers creating a transparent protective film, which prevents dehydration. On the other hand, when the manufacturer looks for shorter chains and with greater penetration capacity, it does so to achieve that it reaches deeper layers providing elasticity and increasing dermal thickness. Something that some brands enhance by associating the molecule with colloidal gold in what they call gold nanoparticles of hyaluronic acid.

What the experts insist is that these injections should not produce pain when applied; The compound must adapt to the patient's facial movements and simulate the movement of the skin itself and the product must be incorporated naturally into the patient's dermis, to provide as much naturalness as possible.

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